What was the specific guidance upgrade announced by Mercury NZ (ASX:MCY)?

Mercury NZ has increased its FY2026 EBITDAF guidance from $1 billion to $1.05 billion, representing a 5% boost to its projected operating earnings.

How does this news affect the investment thesis for Mercury NZ?

This news strengthens the thesis for Mercury as a growth-oriented renewable energy play, proving that its recent capital expenditure on new generation is beginning to pay off.

What are the primary "bull" points for MCY shareholders following this update?

The main bullish indicators are the $50 million increase in EBITDAF guidance and the successful contribution of new generation assets to the bottom line. Increased hydro output suggests Mercury is capturing higher margins from low-cost renewable sources.

What are the "bear" points or risks to the Mercury NZ (ASX:MCY) guidance?

The primary risk is "hydrological volatility," meaning a sudden shift to dry weather could reduce hydro-generation levels and force a downward revision later.

What role did new generation assets play in this financial upgrade?

The upgrade was partially fueled by production from "newly commissioned generation assets," suggesting that Mercury's recent infrastructure investments are now operational and accretive to earnings.

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Mercury NZ raises FY26 earnings on renewable growth

Written by Heidi Cuthbert Published Apr 21, 2026, 11:09 PMLast Updated Jul 6, 2026, 10:29 AM

New Zealand energy firm Mercury NZ (ASX:MCY) has raised its earnings guidance for the 2026 financial year, citing a robust increase in renewable energy production.

The company upgraded its forecast EBITDAF (earnings before interest, tax, depreciation, amortisation, and fair value movements) from $1 billion to $1.05 billion.

The revision is largely attributed to higher-than-anticipated output from its hydro schemes and newly commissioned generation assets, paired with what the board described as "disciplined portfolio management".

While the outlook is optimistic, Mercury cautioned that the updated guidance remains contingent on hydrological conditions and potential unforeseen one-off expenses throughout the remainder of the fiscal year.